This 3-stage knife sharpener from Taylors Eye is suitable for sharpening and honing steel and ceramic knives. Dull metal blades are first pulled through the tungsten carbide sharpener three to four times. The fine honing is then done with the fine ceramic rods by pulling the blade through two to three times. Metal blades that still have a good sharpness, as well as ceramic blades, can be honed directly with the diamond rods for a particularly fine edge. During the sharpening process, the sharpener should be placed on the table so that the non-slip rubber material can fully take effect.